Compound engine.



N0..886,4ss. V PATBNTED MM5, 1908.

M. H. SULLIVAN.

' GOMPOUN'D ENGINE. APPLIOATION FILED AUGJZ. 1907. I

vwentozf /fff/uw ZH/Qd/ kan@ Wi ha eases and each end of the cylinder is provided with an auxiliary exhaust; 7 which can'- be actu'-`Y ated by an ordinary means', which is, there- L It is a well-known fact that under certain con- EATENT oEEioE- MICHAELl H. SULLIVAN, POUGHKE'EPSIE, NEW YORK.

-coM'PoUND ENGINE.

To all whom it may concer/n:

-Be it known that I, MICHAEL H. SULLIVAN, a citizen -of the United States, residingv at Poughkee sie, in the county vof Dutchess and State' of ew York, have invented new and useful Im rovements in Compound Engines, of which t e followin is a specification.

This invention re ates to Vcom ound..engines, and has for its obiect to ut ize or co11` serve the force and ener of the motive medium t'o theA greatest possible extent. I

In o erating engines, and especially those in whic steam is used for the motive power,`

there is. always a greater or less amount of loss of energy by having to-exhaust the steam from the piston before' all of its expansive power has been utilized. Efforts have` been 1 made to utilize'this Ilowerv by passing the ex'- haust steam throng oneor more engines, but only with a limited amount of success.

dit'ions steam c'an be used more eect-ively in :a turbine than it can be in a reciprocato engine, and I have invented means bywhic the exhaust steam from a reciprocate engine ma bethus utilized -by passing it t ou ha tur ine mi e. I preferably connect oth engineswit kthe same shaft and provide a-n accumulator between the engines, which receives the steam from the reciprocatory en- 'ne and delivers it to the rotary engine. wo exhaust ports are prcvidedfor each end of the cylinder, and a condenser is preferably rovided at the discharge outlet of the turine.

In the accompanying drawings'z-Figure 1 represents a sectionaldiagrammatic view of one form of a plant or apparatus, by means of whichmy invention may be practiced and Fig:L 2 is a broken sectional detail view.` l

eferring more particularly to the accom-` panying drawings, 1 indicates the c linder of an ordinary' Corliss engine, Whic is rovided at its ends with the yordinary inlet ports, 2, and exhaust iports, 3. -The inlet orts, 2, may .be su lie with steam from an inlet` pipe, 4, and a of said valves are actuated in a well known manner, whichitA isnot necessary to show. '.The piston-5 is' 4connect? ed with a shaft, 6, in the Well known manner,

I fore,.not s own. The exhaust'ports, 7, are

l Specication of LettersPatent. y Appiicaaon nieanugm 12.1907. 'sensi No. .aas,225.

Patented May 5, '1908.

l ton, l5 before the latter reaches the limitof its movement toward that end, but is referably not opened until 'ust before t e piston reaches its' limit, an it is then held open until .the piston, asses it on its return stroke.' This secures t e greatest possible effectiveness from the steam expansively, and permits ,-of'the escape of the steam with theleast Ios- -sibleback ressure on the return'stroke o the piston.' Elie steam from the exhaust ports, .7', is led into an accumulator, 8, as by means .turbine wlheel,Y 1-0, through a pipe. 11. The turbine is mounted in a -casin 12, and secured to the shaft,- 6, in any Wel known manner, and the valves, 7, are so larranged that after-the steam has been passed into the accumulator, the valves are closed and back ressure from the accumulator into the cylinr 1 isthereby prevented. As only a portion `of the steam can escape -through the valves, 7 the remaining'portion is permitted to esca e through the valves 8 in the usual'manner, ut instead of ermitting suchnal exhaust to escape into t e air, it is lator, 8, by means of pipes, 15. In this manner, its heat is utilizedfor retaining the heat of the steam in the accumulator, and it is` then preferably passed on to'A the 1 turbine through a ipe, 16, which leads from the casing, .14, in ependently of the pipe, 11.

steam is delivered to an ordinary condenser utilized for heatin 'feed water, or any other purpose. By con as passedthrough the turbine wheel, a vacuum, is produced, which therebyv completely prevents an back pressure, and, in reality, permits oft e escape of the exhaust Vmosphere, as substantially a back pressure isehminated."

vheavy load, t e suppl of steam is not cut ofi until just beforev t e piston reaches vthe limit of its stroke, and lby roperly adjusting the movement of the auxiliary valves, 7, the exhaust steam therefrom passes into the .large chamber `f the accumulator, and then passing it throu h the turbine wheelthrough of a pipe, 9, from' whence it is'passed onto the conveyed to a casing, 14, around the accumu- From the turbine wheel, 10, the exhaust I as shown at.17, by means of which it may be ensing the steam after it through the valves, 3, more eE-ectively than l if the exhaust were disohar ed into' the at- When usin la reciprocatory engine under laccumulator almost at" boiler pressure.' By discharging steamA into the comparatively` p agconiparatively smaller pipe,v thevdischarge secured to said shaft, a condenser communirocatory engine.

of the steamv to the turbine is rendered com- I inlet port at each end and an exhaust port' paratively even and uniform, thereb se j intermediate its ends, a turbine, an accumucuring great efliciency with very simpli; apl "iator, a jacket surrounding the accumulator para-tus. and spaced therefrom, means forestablish- Having thus fully described my invention, j ing communication between the intermediate what l claim as new and desire to secure by exhaust ort and the accumulator, means Letters-Patent, is: i for estab ishing communication between the l. ln a compound engine, a reciprocatory i jacket and engine, a crank shaft connectedr therewith, a l for establishing communication between the turbine engineon said shaft, an accumulator, j turbine and the accumulator and means for means for passing part of the exhaust steam j establishing communication between the from the reciprocatory engine through the acturbine and the aoket. surrounding theaccumulator to the turbine engine, and means cumulator. l for passing the remainder of the exhaust 6. In a compound engine, a reciprocatory around the accumulator and to the turbine engine, a crank shaft connected therewith, a engine. turbine engine, an accumulator, means for 2. ln a compoundl engine, a reciprocatory passing part of the exhaust steam from the vengine provided with two exhaust ports at reciprocatory engine through the accumulaeach end, a crank shaft connected with said tor to the turbine engine, and means for passengine, a turbine engine connected with said ing the remaining shaft, an accumulator co'mmunicating'with the turbine engine and with one of said exhaust ports at each end of the reciprooatory engine, and a casing around the accumulator communicating with the turbine engine and with the other port at each end oi the recipengine. f

7. In combination, a reciprocatory; engine, the cylinder of which has an exhaust and an inlet port and an extra exhaust port, a turi bine, an accumulator, means for establishing communication between the extra exhaust port and the accumulator, and means for esi tablishing communication between the accu- .I niulator and the turbine. .1

S. In combination, a reciprocatory engine, the cylinder of which has the usual inlet and exhaust ports, and an extra exhaust port, an accumulator, a acket surroundii g the accumulator and spaced therefrom,

3. In acompound engine, a recprocatory engine provided with two exhau's;I ports for each end of the engine cylinder, one of which is at a distance from its end, a crank shaft connected with said engine, a turbine engine eating with the exhaust port 'of the turbine engine, an accumulator communicating with the turbine engine and with the two exhausts at a distance from the ends ofthe reciprocatory engine, a casino' around the accumulator communicating with the turbine engine and with the other exhaust ports of the reciprocatory engine.

4. In combination a reciprocatory engine the cylinder of whichhas an exhaust and an inlet port-at each end and an exhaust poriJ intermediate its ends, a turbine, an accumu lator, means for establishing communication j between the intermediate exhaust port and l the accumulator, and means for establishing l communication between the accumulator l and the turbine. j l

meansjfor establishing communication between the ex tra exhaust port andthe accumulator, means for establishing communication between the jacket and the usual exhaust ports, means for establishing communication between the turbine and the accumulator, and means for establishing communication between the turbine and the jacketsurrounding the accumulator. l Y

ln testimony whereof I have signed' my name to this specification in the presence of two subscribing,witnesses. f'

MCHAEL H. SULLIVAN.

l/Vitnesses:

G. Cown.

5. In combination a reciprocatory engine L. 0. HimoN.

the cylinder of which has an exhaust and an portion of the exhaust f around the accumulator and to the-.turbine 

